The effect of germination on the levels of certain antinutritional factors, nutritional composition and in vitro protein digestibility (IVPD) of soybean seeds were determined. Raw soybeans contain antinutritional factors, such as trypsin inhibitors (83.05 mg/g), total polyphenols (10.83%) and condensed tannins (1.24%). These factors limit the use of soybeans as a source of protein, carbohydrates and minerals in the poultry industry. In general, soybeans are subjected to heat treatment to reduce the amount of antinutritional factors within the seeds, but it is costly and needs high technology equipment. In order to assist small-scale chicken farmers or people living in developing countries, traditional or domestic processing methods are implemented to address the problem of antinutritional factors (ANFs) in soybeans. This study focused on germination as a versatile and low cost practice. Different lengths of germination time were assessed and compared to each another. Soybeans were soaked for 24 hours and allowed to germinate from one day up to six days. Changes within seeds were noted for nutritional and antinutritional factors during germination. Condensed tannins and trypsin inhibitors decreased significantly (P<0.05) while total polyphenols increased from 5 to 6 days. Protein and fat content increased significantly (P<0.05), but starch content decreased with germination. There were no significant changes for IVPD during germination of soybeans. Germination was also compared to other traditional methods such as roasting, soaking and dehulling. Results showed that dehulled soybeans had the highest proximate composition which was significantly different from other treatments (P<0.05), but the total polyphenols increased. It was concluded that germination for a period of three days effectively improved the nutritional value of soybeans and can be considered as an alternative treatment of soybeans in situations where heat treatment is impossible or impractical. Copyright / Dissertation (MSc(Agric))--University of Pretoria, 2011. / Animal and Wildlife Sciences / unrestricted

Doctor of Philosophy / Department of Grain Science and Industry / Sajid Alavi / The feasibility of using a wheat flour mill to refine corn, sorghum and cowpea was studied. Milling of white sorghum grain resulted in decrease in fiber content from 1.89% to 0.38% and 0.45% in raw, finely milled and coarsely milled sorghum respectively. Similarly, there was a reduction in fat (3.17% to 1.75% and 0.51%) content from raw to fine and coarse milled fractions. Starch content increased from 61.85% in raw to 69.80% in fine and 72.30% in coarse fractions. Protein content was almost unchanged at about 7.40% in all the fractions. In de-hulling and milling of cowpeas, starch and protein content increased whereas fiber, fat and ash content decreased. There was a significant difference in expansion characteristics between whole and decorticated binary blends on account of different levels of inherent starch content. Sorghum cowpea (SC) blends had the highest specific mechanical energy (SME) range (285.74 – 361.52 kJ/kg), followed by corn soy (CS) (138.73 – 370.99 kJ/kg) and the least SME was found in sorghum soy (SS) blends (66.56 – 332.93 kJ/kg). SME was found to be positively correlated to starch content in the blends. SC blends had the most stable process followed by SSB and CSB in that order. The milling of expanded extrudates was found to be dependent on bulk density and low bulk density extrudates had bigger particle size and vice-versa. The water absorption index (WAI) for SC was 4.17 g/g to 5.97 g/g, SS ranged from 2.85 g/g to 5.91 g/g and CS ranged from 2.63 g/g to 5.40 g/g. Starch gelatinization ranged from 85.42 – 98.83% for SC, 90.70 – 96.27% for SS, and 72.57 – 95.49% for CS. The starch digestibility increased after extrusion and cooking but there was no significant change in protein digestibility. There was a significant reduction in anti-nutritional factors – phytic acid (26.06 – 44.03%), tannins (18.69 – 26.67%) and trypsin inhibitor (16.55 – 50.85%) after extrusion. Thus, the study showed that high protein blends with superior nutrition density needed for preparation of FBFs could be produced by using existing/traditional milling capabilities and extrusion process.

The use of full fat soybeans (FFSB) in animal feeds has, to date, been limited due to the presence of anti-nutritional factors (ANF). It is, therefore, increasingly recognized that, if the full potential of full fat soybeans for the use in diets is to be realized, reliable analytical procedures must be available for the quality control of processed FFSB which would enable feed manufactures to determine the degree of soybean processing. Results of currently available analytical techniques vary widely between laboratories, causing uncertainty and confusion among soybean processors, feed manufacturers and end users. A collaborative study was conducted to standardize a number of existing analytical procedures used for determining the effects of heat treatment on FFSB and to generate South African ranges for standardized laboratory procedures. Raw soybeans, in a mixture of cultivars, were processed by dry extrusion at eight different temperatures (110ºC, 120ºC, 127ºC, 136ºC, 140ºC, 145ºC, 151ºC and 164ºC). In vivo trials were conducted on broiler chicks which were fed the eight extruded FFBB. Their performance was monitored with regard to average daily gain (ADG) and feed conversion ratio (FCR). The Protein Solubility in KOH (PSKOH) and the Protein Dispersibility index (PDI) procedures were used for standardization in an inter-laboratory study with the participation of ten South African analytical laboratories. Statistical analysis of the in vivo trials with broilers showed no significant difference (P>0.05) between broilers fed FFSB processed at 136 ºC, 140 ºC and 145 ºC. In addition, samples processed at those temperatures (136 ºC, 140 ºC and 145 ºC) showed the best chick performance with regard to average daily gain (ADG) and the feed conversion ratio (FCR). There was a significant difference (P<0.05) between broilers fed FFSB processed at 110 ºC, 120 ºC and 120 ºC as well as those fed FFSB processed at 151 ºC and 164 ºC. In vitro results showed that the PSKOH and PDI values corresponding to temperatures which showed the best chicken performance were between 67-77% and 10.3-8.5 index units respectively. Therefore, the South African ranges for describing the degree of soybean processing using the PSKOH method are 66-77% with repeatability and reproducibility limits of 3.5 and 10.9 respectively and, when using the PDI method, are 8.5-10.3 index units with repeatability and reproducibility limits of 2.1 and 7.7 respectively. A very good correlation was established between the animal production parameters and the PSKOH values, while a poor correlation between animal production parameters (ADWG and FCR) and PDI values was established. The PSKOH method was found to be the most reliable method for FFSB quality control under standardized South African conditions. / Dissertation (MSc)--University of Pretoria, 2011. / Animal and Wildlife Sciences / unrestricted

A soja tolerante ao herbicida glifosato é o vegetal geneticamente modificado mais cultivado. Entretanto, questões sobre a biossegurança dos alimentos GM são ainda levantadas, como as incertezas sobre a expressão das novas proteínas, mutações indesejadas, alterações de perfis nutricionais e aparecimento de compostos tóxicos. Apesar dos comprovados efeitos benéficos à saúde, a soja apresenta naturalmente, entre suas proteínas, fatores antinutricionais, que podem: provocar efeitos fisiológicos adversos; diminuir a biodisponibilidade de nutrientes; e induzir reações de hipersensibilidade. Paralelamente, a soja possui sabor e aroma desagradáveis por ação de enzimas lipoxigenases. Os fatores antinutricionais estão relacionados às aglutininas (lectinas) e aos inibidores de proteases (inibidor de tripsina, tipo Kunitz, e inibidor de tripsina e quimotripsina, tipo Bowman-Brik), enquanto as globulinas da soja respondem pelas reações de hipersensibilidade. Objetivou-se neste trabalho fazer a comparação dos mapas protéicos de soja GM, suas isolinhas convencionais e sojas orgânicas visando a detecção de alterações nos perfis protéicos destes diferentes tipos de cultivo, e também a análise da expressão dos fatores antinutricionais, como os inibidores de proteases e aglutininas, considerando a extensão das variações naturais existentes nas amostras. Para tanto, foram comparadas seis amostras de sementes de variedades comerciais de soja cultivadas em paralelo, sob as mesmas condições ambientais e de solo, compostas por três isolinhas genitoras e suas três correspondentes GMs e duas amostras orgânicas, sendo que uma delas é comercial e a outra ainda esta em campos de pesquisa, fornecidas pela Embrapa Soja. Foram analisados extratos protéicos de todas as amostras, após extração com ácido tricloroacético (TCA) e acetona, através de eletroforese unidimensional (1D) e bidimensional (2D). Nestas foi empregado gradiente de pH de 3-10 e as imagens avaliadas pelo software ImageMaster 2D Platinum. Diversos spots selecionados foram identificados por espectrometria de massas. Nas imagens dos géis 2D, foi possível identificar e quantificar os spots correspondentes às proteínas isoladas e não houve diferença estatística ao nível de significância de 5% entre os diferentes tipos de cultivo. Na verificação da sobreposição dos géis, obtivemos porcentagens de matchings superiores a 70% entre as amostras GMs e não GMs. As amostras orgânicas apresentaram % matchings menores que entre convencionais e GMs. Nos resultados da espectrometria de massas foi possível reconhecer os principais grupos protéicos da soja, como as frações e subunidades de &#946;-conglicinina e de glicinina, bem como os inibidores de proteases, aglutininas e lipoxigenases e não foi possível perceber alterações na expressão dos peptídeos identificados e analisados. Podemos concluir que as variações encontradas entre as três amostras convencionais e entre as amostras dos grupos convencionais e orgânicas foram maiores que a comparação das amostras GMs com suas genitoras correspondentes. / The glyphosate tolerant soybean is the most cultivated GM plant. However, questions about the bio-safety of GM foods are still rising, as there are uncertainty about the expression of new proteins, undesired mutations, changes in nutritional profile and the production of toxic compounds. Despite of the beneficial effects to human health, the soybean has anti-nutritional factors that can cause adverse physiological effects, reduce the bioavailability of nutrients, and induce hypersensitivity reactions. At the same time the soybean develop undesirable flavor due to the action of lipoxygenases. The anti-nutritional factors are related to agglutinins (lectins) and to the proteases inhibitors (Kunitz\'s Trypsin Inhibitor and Bowman-Birk\'s Inhibitor of Trypsin and Chymotrypsin) while the soybean globulins are responsible for hypersensitivity reactions. The objective of this work was to compare proteic maps of GM soybean, conventional isolines and organic soybean aiming to detect changes in protein profiles of the different types of cultivation and also analyze the expression of the anti-nutritional factors, such as protease inhibitors and agglutinins, taking into consideration the natural variation existing in the samples. For this, it was performed the comparisons between six seed samples of commercial varieties of soybeans, grown in parallel under the same environmental conditions and soil, composed of three parental isolines and their three corresponding GM and two organic sample, one of them is commercial and the other is still in search fields. The samples were provided by Embrapa Soja. Protein extracts were analyzed from the samples after extraction with trichloroacetic acid (TCA) and acetone using regular monodimensional electrophoresis (1D) and two-dimensional (2D) ones. For 2D were used strips of pH gradient 3-10 and the final images analyzed by ImageMaster 2D Platinum software. Several selected spots were identified by mass spectrometry. In the images of the 2D gels, we could identify and quantify the spots corresponding to proteins isolated and there was no statistical difference at 5% of significance between the different types of cultivation. Checking the overlap of the gels, we obtained matchings above 70% between GM and non GM sample. The organic sample had lower matching index between conventional and GM. It was possible to recognize the major groups of soy protein as a result of mass spectrometry such as¨&#946;-conglycinin fractions and glycinin as well as protease inhibitors, lipoxygenase, and agglutinins. We concluded that the variations found among the tree conventional samples and between samples of conventional and organic groups were higher than the comparison of sample GMs with their corresponding parentals.

Submitted by Franciele Moreira (francielemoreyra@gmail.com) on 2018-06-08T13:46:39Z No. of bitstreams: 2 Dissertação - Juliana Aparecida Correia Bento - 2018.pdf: 3915998 bytes, checksum: 02825a5c8f16825aad6955538d1369a8 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2018-06-08T15:06:59Z (GMT) No. of bitstreams: 2 Dissertação - Juliana Aparecida Correia Bento - 2018.pdf: 3915998 bytes, checksum: 02825a5c8f16825aad6955538d1369a8 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2018-06-08T15:06:59Z (GMT). No. of bitstreams: 2 Dissertação - Juliana Aparecida Correia Bento - 2018.pdf: 3915998 bytes, checksum: 02825a5c8f16825aad6955538d1369a8 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2018-02-28 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / Cochlospermum regium, a native plant of the Brazilian Cerrado, known as “Algodãozinho-do- campo”, is used in folk medicine for the treatment of infections and inflammation. Jatropha elliptica (Pohl) Muell Arg is a plant belonging to the Euphorbiaceae family, native to the Brazilian Cerrado, and popularly known as "Batata-de-teiú". There is a lack of scientific knowledge about the physico-chemical and technological aspects of Jatropha elliptic and its possible applications, in foods and or medicines. Hedychium coronarium Koen, native to Nepal, is considered an invasive plant in Brazil, as it presents rapid and negative growth for plant biodiversity. Rhizomes are man-made due to their medicinal properties, such as the treatment of headache, cancer and inflammation, but it can also be a potential source for starch extraction. Algodãozinho-do-campo, Batata-de-teiú and lírio-do-brejo are rhizomatous plants with the potential to obtain starch and flour. The objective of this work was to contribute with unpublished data on the characterization of flour and starch with a probable functional value, extracted from Hedychium coronarium Koen, Cochlospermum regium and Jatropha elliptica (Pohl) Muell Arg, as well as the application of these products as substrate in the semi-solid fermentation, aiming the production of enzymatic extracts, and to evaluate the effect of the ultrasound on the lírio-do-brejo starch. The extracted starches present peculiar technological characteristics, being: the algodãozinho-do-campo starch under cooking temperature absorbs less water and solubilizes less than the corn starch, maintaining more the structure of the granules in the final product, being able to contribute to the improvement of final product texture; the batata-de-teiú starch had a low tendency to retrograde; the lírio- do-brejo starch presented high amylose content (about 59.16%), crystallinity of 19.30%, and when it was submitted to ultrasound for 15 min at 62% intensity and 12.5 g 100g-1 an increase in viscosity peak (from 1917 to 2257 cP) and reduction in tendency to retrograde (from 2079 to 1295 cP) was observed. The flours presented peculiar nutritional characteristics, antioxidant capacity, presence of phenolic compounds, low toxicity in Artêmia salina, presence of antinutritional factors, and were not efficient for the production of enzymatic extracts by semi-solid fermentation. It is concluded that they are plants with potential to obtain starch and flour. / Cochlospermum regium, planta nativa do cerrado brasileiro, conhecida como algodãozinho- do-campo, é utilizada na medicina popular para o tratamento de infecções e inflamações. Jatropha elliptica (Pohl) Muell Arg é uma planta pertencente à família das Euphorbiaceae, nativa do cerrado brasileiro, e conhecida popularmente como “batata-de-teiú”, sendo que existe carência de conhecimentos científicos sobre os aspectos fisíco-quimicos e tecnológicos da Jatropha elliptica e suas possíveis aplicações, em alimentos e ou medicamentos. O lírio-do- brejo (Hedychium coronarium Koen), natural do Nepal, é considerado planta invasora no Brasil, pois apresenta crescimento rápido e negativo para a biodiversidade vegetal. Os rizomas são aproveitados pelo homem, devido suas propriedades medicinais, como o tratamento da cefaleia, câncer e inflamações, mas também pode ser uma fonte potencial para a extração de amido. Algodãozinho-do-campo, batata-de-teiú e lírio-do-brejo são plantas rizomatosas com potencial para a obtenção de amido e farinha. Com isso, este trabalho tem por objetivo contribuir com dados inéditos sobre a caracterização das farinhas e féculas, com provável valor funcional, extraídas do Hedychium coronarium Koen, Cochlospermum regium e Jatropha elliptica (Pohl) Muell Arg, bem como a aplicação destes produtos como substrato na fermentação semissólida, visando a produção de extratos enzimáticos, e avaliar o efeito do ultrassom sobre o amido de lírio-do-brejo. Os amidos extraídos apresentam características tecnológicas peculiares, sendo que: o amido de algodãozinho-do-campo sob temperatura de cozimento absorve menos água e se solubiliza menos que o amido de milho, mantendo mais a estrutura dos gânulos no produto final, podendo contribuir para a melhoria da textura do produto final; o amido de batata-de-teiú apresentou baixa tendência à retrogradação; o amido de lírio-do-brejo apresentou alto teor de amilose (cerca de 59.16%), cristalinidade de 19.30%, sendo que quando este foi submetido ao ultrassom, por 15 min, a 62% de intensidade e 12.5 g 100g-1 de concentração, observou-se um aumento do pico de viscosidade (de 1917 para 2257 cP) e a redução da tendência à retrogradação (de 2079 para 1295 cP). As farinhas apresentaram caracteristicas nutricionais peculiares, capacidade antioxidante, presença de compostos fenólicos, baixa toxicidade em ensaio com Artêmia salina, presença de fatores antinutricionais, e não foram eficientes para a produção de extratos enzimáticos por fermentação semissólida. Conclui-se que são plantas com potencial para a obtenção de amido e farinhas.

A soja tolerante ao herbicida glifosato é o vegetal geneticamente modificado mais cultivado. Entretanto, questões sobre a biossegurança dos alimentos GM são ainda levantadas, como as incertezas sobre a expressão das novas proteínas, mutações indesejadas, alterações de perfis nutricionais e aparecimento de compostos tóxicos. Apesar dos comprovados efeitos benéficos à saúde, a soja apresenta naturalmente, entre suas proteínas, fatores antinutricionais, que podem: provocar efeitos fisiológicos adversos; diminuir a biodisponibilidade de nutrientes; e induzir reações de hipersensibilidade. Paralelamente, a soja possui sabor e aroma desagradáveis por ação de enzimas lipoxigenases. Os fatores antinutricionais estão relacionados às aglutininas (lectinas) e aos inibidores de proteases (inibidor de tripsina, tipo Kunitz, e inibidor de tripsina e quimotripsina, tipo Bowman-Brik), enquanto as globulinas da soja respondem pelas reações de hipersensibilidade. Objetivou-se neste trabalho fazer a comparação dos mapas protéicos de soja GM, suas isolinhas convencionais e sojas orgânicas visando a detecção de alterações nos perfis protéicos destes diferentes tipos de cultivo, e também a análise da expressão dos fatores antinutricionais, como os inibidores de proteases e aglutininas, considerando a extensão das variações naturais existentes nas amostras. Para tanto, foram comparadas seis amostras de sementes de variedades comerciais de soja cultivadas em paralelo, sob as mesmas condições ambientais e de solo, compostas por três isolinhas genitoras e suas três correspondentes GMs e duas amostras orgânicas, sendo que uma delas é comercial e a outra ainda esta em campos de pesquisa, fornecidas pela Embrapa Soja. Foram analisados extratos protéicos de todas as amostras, após extração com ácido tricloroacético (TCA) e acetona, através de eletroforese unidimensional (1D) e bidimensional (2D). Nestas foi empregado gradiente de pH de 3-10 e as imagens avaliadas pelo software ImageMaster 2D Platinum. Diversos spots selecionados foram identificados por espectrometria de massas. Nas imagens dos géis 2D, foi possível identificar e quantificar os spots correspondentes às proteínas isoladas e não houve diferença estatística ao nível de significância de 5% entre os diferentes tipos de cultivo. Na verificação da sobreposição dos géis, obtivemos porcentagens de matchings superiores a 70% entre as amostras GMs e não GMs. As amostras orgânicas apresentaram % matchings menores que entre convencionais e GMs. Nos resultados da espectrometria de massas foi possível reconhecer os principais grupos protéicos da soja, como as frações e subunidades de &#946;-conglicinina e de glicinina, bem como os inibidores de proteases, aglutininas e lipoxigenases e não foi possível perceber alterações na expressão dos peptídeos identificados e analisados. Podemos concluir que as variações encontradas entre as três amostras convencionais e entre as amostras dos grupos convencionais e orgânicas foram maiores que a comparação das amostras GMs com suas genitoras correspondentes. / The glyphosate tolerant soybean is the most cultivated GM plant. However, questions about the bio-safety of GM foods are still rising, as there are uncertainty about the expression of new proteins, undesired mutations, changes in nutritional profile and the production of toxic compounds. Despite of the beneficial effects to human health, the soybean has anti-nutritional factors that can cause adverse physiological effects, reduce the bioavailability of nutrients, and induce hypersensitivity reactions. At the same time the soybean develop undesirable flavor due to the action of lipoxygenases. The anti-nutritional factors are related to agglutinins (lectins) and to the proteases inhibitors (Kunitz\'s Trypsin Inhibitor and Bowman-Birk\'s Inhibitor of Trypsin and Chymotrypsin) while the soybean globulins are responsible for hypersensitivity reactions. The objective of this work was to compare proteic maps of GM soybean, conventional isolines and organic soybean aiming to detect changes in protein profiles of the different types of cultivation and also analyze the expression of the anti-nutritional factors, such as protease inhibitors and agglutinins, taking into consideration the natural variation existing in the samples. For this, it was performed the comparisons between six seed samples of commercial varieties of soybeans, grown in parallel under the same environmental conditions and soil, composed of three parental isolines and their three corresponding GM and two organic sample, one of them is commercial and the other is still in search fields. The samples were provided by Embrapa Soja. Protein extracts were analyzed from the samples after extraction with trichloroacetic acid (TCA) and acetone using regular monodimensional electrophoresis (1D) and two-dimensional (2D) ones. For 2D were used strips of pH gradient 3-10 and the final images analyzed by ImageMaster 2D Platinum software. Several selected spots were identified by mass spectrometry. In the images of the 2D gels, we could identify and quantify the spots corresponding to proteins isolated and there was no statistical difference at 5% of significance between the different types of cultivation. Checking the overlap of the gels, we obtained matchings above 70% between GM and non GM sample. The organic sample had lower matching index between conventional and GM. It was possible to recognize the major groups of soy protein as a result of mass spectrometry such as¨&#946;-conglycinin fractions and glycinin as well as protease inhibitors, lipoxygenase, and agglutinins. We concluded that the variations found among the tree conventional samples and between samples of conventional and organic groups were higher than the comparison of sample GMs with their corresponding parentals.

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Dissertação (Mestrado em Ciência e Tecnologia de Alimentos) - Universidade Federal de Goiás, Goiânia, 2016. on 2017-02-15T09:28:57Z (GMT) / Submitted by Erika Demachki (erikademachki@gmail.com) on 2017-02-15T15:56:43Z No. of bitstreams: 2 Dissertação - Jennifer Vieira Pinto - 2016.pdf: 3207260 bytes, checksum: 75e3617cc1ca4e537ea4eb6d34fb3ef8 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Erika Demachki (erikademachki@gmail.com) on 2017-02-15T15:57:00Z (GMT) No. of bitstreams: 2 Dissertação - Jennifer Vieira Pinto - 2016.pdf: 3207260 bytes, checksum: 75e3617cc1ca4e537ea4eb6d34fb3ef8 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2017-02-15T15:57:00Z (GMT). No. of bitstreams: 2 Dissertação - Jennifer Vieira Pinto - 2016.pdf: 3207260 bytes, checksum: 75e3617cc1ca4e537ea4eb6d34fb3ef8 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2016-08-25 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / We aimed to characterize the physical, chemical, technological, nutritional and functional properties of beans from different color groups in order to feed the Embrapa Rice and Beans database, contributing with useful information to the scientific community and food industries. Carioca (Pérola - "PER" and BRS Estilo - "ETL"), black (BRS Esteio - "EST" and IPR Uirapuru - "IPR") and special beans (BRS Agreste - "AGR" and BRS Pitanga - "PIT") were grown in June (winter / 2014) in Santo Antônio de Goiás -GO, and analyzed for: the 100-seed weight, size, sphericity, color, moisture, water activity and density. Flours were analyzed for: granulometry, color, water absorption and solubility index, oil retention capacity, foam properties, emulsifiers, stabilizers, paste properties, kaempferol content, proximal composition, minerals, amino acid profile, protein in vitro digestibility and anti-nutritional factors. Black grains were lighter, and carioca, heavier. Grains of "PER" presented greater length and "AGR", greater sphericity; "ETL" tended to lighter grains; "PIT", "IPR" and "EST", darker. Flours of "EST" and "IPR" had greater uniformity; "ETL", "PER" and "AGR" presented lighter and more yellow flours; the "IPR" flour showed higher values of water absorption; "EST", higher values of oil absorption; the "PIT", better solubility; AGR, higher foaming (pH 2.5); the "IPR", the higher maximum viscosity. Grains of "PIT" presented higher concentration of kaempferol; "PIT" and "PER", higher protein levels; "EST" had more lipids; and "AGR", more carbohydrates. All flours had high mineral contents. Black beans showed higher levels of essential and non-essential amino acids, followed by special and carioca beans; "EST" had the lowest Essential Amino Acid Score (EAS) (1.20), and "ETL", highest EAS (1.40); "EST", lower protein digestibility; carioca and special beans, higher levels of phytic acid; "PIT" showed higher molar ratio (phytate: iron) and "AGR", higher molar ratio (phytate: zinc); "PER", lower tannin contents; "IPR", lower levels of trypsin inhibitors and "PIT", greater inhibition of α-amylase. The specialty beans presented excellent physical, chemical, technological, nutritional and functional characteristics, and can be used as ingredients of new products by the food industry. / Objetivou-se caracterizar propriedades físicas, químicas, tecnológicas, nutricionais e funcionais de feijões de diferentes grupos de cor, a fim de alimentar o banco de dados da Embrapa Arroz e Feijão, contribuindo com informações úteis à comunidade científica e indústrias de alimentos. Feijões carioca (Pérola – “PER” e BRS Estilo – “ETL”), preto (BRS Esteio – “EST” e IPR Uirapuru – “IPR”) e especial (BRS Agreste – “AGR” e BRS Pitanga – “PIT”) foram cultivados em Junho (inverno/2014), em Santo Antônio de Goiás-GO, e analisados quanto à/ao: peso de 100 grãos, tamanho, esfericidade, cor, umidade, aw e densidade. Farinhas foram analisadas quanto à/ao: granulometria, cor, índice de absorção e solubilidade em água, capacidade de retenção de óleo, propriedades espumantes, emulsificantes, estabilizantes, propriedades de pasta, teor de kaempferol, composição centesimal, minerais, perfil de aminoácidos, digestibilidade proteica in vitro, e fatores antinutricionais. Grãos pretos apresentaram-se mais leves, e carioca, mais pesados. Grãos de “PER” apresentaram maior comprimento e da cultivar “AGR”, maior esfericidade; ”ETL” tendeu a grãos mais claros; ”PIT”, “IPR” e “EST”, mais escuros. Farinhas de “EST” e “IPR” tiveram maior uniformidade; “ETL”, “PER” e “AGR” apresentaram farinhas mais claras e amareladas; farinha do “IPR” apresentou maiores valores de absorção de água; “EST”, maiores valores de absorção de óleo; a da “PIT”, melhor solubilidade; a da “AGR”, maior formação de espuma (pH 2,5); a do “IPR”, maior viscosidade máxima. Grãos da “PIT” apresentaram maior concentração de kaempferol; “PIT” e “PER”, maiores teores protéicos; “EST”, mais lipídeos; e “AGR”, mais carboidratos. Todas as farinhas tiveram altos teores de minerais. Feijões pretos apresentaram maiores teores de aminoácidos essenciais e não essenciais, seguidos dos feijões especiais e carioca; “EST” teve o menor Escore de Aminoácidos Essenciais (EAE) (1,20), e “ETL”, maior EAE (1,40); “EST”, menor digestibilidade proteica; feijões carioca e especiais, maiores teores de ácido fítico; “PIT” apresentou maior razão molar (fitato:ferro) e “AGR”, maior razão molar (fitato:zinco); “PER”, menores teores de taninos; “IPR”, menores teores de inibidores de tripsina e “PIT”, maior inibição de α-amilase. Os feijões especiais apresentaram ótimas características físicas, químicas, tecnológicas, nutricionais e funcionais, podendo ser utilizados como matéria prima na elaboração de novos produtos pela indústria alimentícia.